Polycom Vortex EF2280 פוליקום

Dimensions
• 19” (483 mm) W x 9.6” (244 mm) L x 1.75” (45 mm) H (one
rack unit)
Weight
• 4 lbs. (1.8 kg) dry, 5.5 lbs. (2.5 kg) shipping
Connectors
• RS-232: DB9F
• EF Bus In/Out: RJ45
• Control /Status: DB25F
• Audio: Mini (3.5mm) quick connect terminal blocks
Power
• External supply (provided)
• Input voltage of 110-240 VAC; 47-63 Hz; power consumption
30 W
Inputs
• Phantom power: 48 V DC, software selectable
• Analog input Gain: 0 to 30 dB Mic/line inputs in 1 dB
steps, software adjustable
• Mic/Line switch gain: 33 dB
• Maximum input amplitude: +19 dBu, 1% THD + N
• Nominal level: 0 dBu (0.775V rms)
• Equivalent input noise: • Input Impedance: 10 kOhms
• Input EMI Filter: Pi filter on all audio inputs
Outputs
• Output Gain: -100 to 20 dBu in 1 dB steps, software
adjustable
• Maximum output amplitude: +23 dBu, 1% THD + N
• Nominal output level: 0 dBu (0.775 V rms)
• Output impedance: 33 Ohm, each leg to ground
• Output EMI Filter: Pi filter on all audio outputs
System*
• Frequency response: 20-20,000 Hz, + 0.2 /- 0.3 dB
• Idle channel noise: Hz, 0 dB gain
• Dynamic range: >100 dB FS "A" weighted, 20 - 20,000 Hz,
0 dB gain
• Linearity: 0 dB FS to -110 dB FS +/- 1 dB
• THD+N: < -90 dB FS
• Common Mode Rejection Ratio: no weighting
• Cross talk: • Latency: Mic/Line inputs to outputs: 13 ms, processing
enabled
• Acoustic Echo Cancellation Span: 270 ms
• Total Cancellation: >65 dB
• Convergence Rate: 40 dB/second
• Noise cancellation: 0-15 dB, software selectable
• Operating Temperature: 0° - 40° C
• Control Inputs: Contact closure
• Status Outputs: 5 V, 20 mA each
*Unless noted, all values are valid for all channels at line level